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authorChristian Grothoff <christian@grothoff.org>2013-03-18 10:36:29 +0000
committerChristian Grothoff <christian@grothoff.org>2013-03-18 10:36:29 +0000
commitae98f60033937c8c94a015cb82dcf1393298a759 (patch)
treeaab88ff7b22550dc13ab9b56f967460f1c022c21 /src/dv/gnunet-dv.c
parent7ad3063679f5976245b151e5c62efad04eada06c (diff)
-enable DV status monitoring
Diffstat (limited to 'src/dv/gnunet-dv.c')
-rw-r--r--src/dv/gnunet-dv.c184
1 files changed, 184 insertions, 0 deletions
diff --git a/src/dv/gnunet-dv.c b/src/dv/gnunet-dv.c
new file mode 100644
index 000000000..77324978e
--- /dev/null
+++ b/src/dv/gnunet-dv.c
@@ -0,0 +1,184 @@
+/*
+ This file is part of GNUnet.
+ (C) 2013 Christian Grothoff (and other contributing authors)
+
+ GNUnet is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file dv/gnunet-dv.c
+ * @brief DV monitoring command line tool
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_dv_service.h"
+
+/**
+ * Handle to DV service.
+ */
+static struct GNUNET_DV_ServiceHandle *sh;
+
+/**
+ * Was verbose specified?
+ */
+static int verbose;
+
+
+/**
+ * Function called if DV starts to be able to talk to a peer.
+ *
+ * @param cls closure
+ * @param peer newly connected peer
+ * @param distance distance to the peer
+ */
+static void
+connect_cb (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ uint32_t distance)
+{
+ fprintf (stderr, "Connect: %s at %u\n",
+ GNUNET_i2s (peer),
+ (unsigned int) distance);
+}
+
+
+/**
+ * Function called if DV distance to a peer is changed.
+ *
+ * @param cls closure
+ * @param peer connected peer
+ * @param distance new distance to the peer
+ */
+static void
+change_cb (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ uint32_t distance)
+{
+ fprintf (stderr, "Change: %s at %u\n",
+ GNUNET_i2s (peer),
+ (unsigned int) distance);
+}
+
+
+/**
+ * Function called if DV is no longer able to talk to a peer.
+ *
+ * @param cls closure
+ * @param peer peer that disconnected
+ */
+static void
+disconnect_cb (void *cls,
+ const struct GNUNET_PeerIdentity *peer)
+{
+ fprintf (stderr, "Disconnect: %s\n",
+ GNUNET_i2s (peer));
+}
+
+
+/**
+ * Function called if DV receives a message for this peer.
+ *
+ * @param cls closure
+ * @param sender sender of the message
+ * @param distance how far did the message travel
+ * @param msg actual message payload
+ */
+static void
+message_cb (void *cls,
+ const struct GNUNET_PeerIdentity *sender,
+ uint32_t distance,
+ const struct GNUNET_MessageHeader *msg)
+{
+ if (verbose)
+ fprintf (stderr, "Message: %s at %u sends %u bytes of type %u\n",
+ GNUNET_i2s (sender),
+ (unsigned int) distance,
+ (unsigned int) ntohs (msg->size),
+ (unsigned int) ntohs (msg->type));
+}
+
+
+/**
+ * Task run on shutdown.
+ *
+ * @param cls NULL
+ * @param tc unused
+ */
+static void
+shutdown_task (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ GNUNET_DV_service_disconnect (sh);
+ sh = NULL;
+}
+
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param cfg configuration
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+ const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+ sh = GNUNET_DV_service_connect (cfg, NULL,
+ &connect_cb,
+ &change_cb,
+ &disconnect_cb,
+ &message_cb);
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
+ &shutdown_task, NULL);
+}
+
+
+/**
+ * The main function.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc, char *const *argv)
+{
+ int res;
+
+ static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+ {'V', "verbose", NULL,
+ gettext_noop ("verbose output"),
+ 0, &GNUNET_GETOPT_set_one, &verbose},
+ GNUNET_GETOPT_OPTION_END
+ };
+
+ if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+ return 2;
+
+ res = GNUNET_PROGRAM_run (argc, argv, "gnunet-dv",
+ gettext_noop ("Print information about DV state"),
+ options, &run,
+ NULL);
+ GNUNET_free ((void *) argv);
+
+ if (GNUNET_OK != res)
+ return 1;
+ return 0;
+}
+
+/* end of gnunet-dv.c */